The Deep Hydrocarbon Cycle: From Subduction to Mantle Upwelling
Autor: | A. Yu. Serovaiskii, A. N. Dmitrievsky, Vladimir G. Kutcherov, Kirill S. Ivanov |
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Rok vydání: | 2020 |
Předmět: |
Iron hydride
010504 meteorology & atmospheric sciences Hydrogen Subduction chemistry.chemical_element Crust 010502 geochemistry & geophysics 01 natural sciences Mantle (geology) Carbide Ferrous chemistry Asthenosphere Earth and Planetary Sciences (miscellaneous) General Earth and Planetary Sciences Petrology Geology 0105 earth and related environmental sciences |
Zdroj: | Doklady Earth Sciences. 492:338-341 |
ISSN: | 1531-8354 1028-334X |
DOI: | 10.1134/s1028334x20050098 |
Popis: | Experimental results and geological observations suggesting the existence of a deep hydrocarbon cycle are presented. During immersion hydrocarbons accumulated in the Earth’s crust in the slab generally maintain stability to a depth of 50 km. With deeper immersion, the hydrocarbon fluids contact the surrounding ferrous minerals forming a mixture of iron hydride and iron carbide on the depths of 100–290 km. Iron carbide transported into the asthenosphere by convective flows can act as carbon donors and react with hydrogen donors presented in the asthenosphere and form an aqueous-hydrocarbon fluid. This fluid can migrate through deep faults into the Earth’s crust and form oil and gas deposits. |
Databáze: | OpenAIRE |
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